Geochemical features of the silt sediment of the Novosibirsk Reservoir

Earlier data on heavy metal concentrations in bottom sediments of the Novosibirsk Reservoir are supplemented by new geochemical characteristics of fine silt sediment in the near-dam part of the reservoir with the list of chemical elements extended to 55. After the beginning of the Ob’s runoff regulation by HPP dam, a new geochemical type of sediment started forming in the new reservoir. This type of sediment features higher concentrations of chemical elements (including heavy metals), reaching the values typical of Baikal silt recorded in the central hollow of the lake.